hi
the thread about mih chip upgrades is in the scalextric digital section. Sorry i cant do the link thing to it.
You do need to purchase a pic programmer to install the mih firmware..
There are a couple of members that are way out in front when it comes to working with the mih stuff,it may be worth yo dropping one of those a pm to see if they will do them for you..
Otherwise sell the rev F one's on flea bay and invest the return on some rev G's